STANAG 4107 (Edition 7, August 2006): Mutual Acceptance of Government Quality Assurance and Usage of the Allied Quality Assurance Publications

STANAG 4172 The adoption of the 5.56 x 45mm NATO round as the standard chambering of all NATO assault rifles

STANAG 4179 The adoption of the M16 style magazine well as the standard 5.56 NATO magazine interface. All magazines and drums, regardless of design, must be compatible with the magazine well in order to be compliant.